Home / 143,809,806.94-215,746,678.86-67,090,984.18

Finding the Fourth Proportional to 143,809,806.94, 215,746,678.86 and 67,090,984.18

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Solution

The fourth proportional to 143,809,806.94, 215,746,678.86 and 67,090,984.18 is: 100,651,390.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,809,806.94 : 215,746,678.86 = 67,090,984.18 : x
  2. Step 2: Convert to fraction form
    143,809,806.94/215,746,678.86 = 67,090,984.18/x
  3. Step 3: Cross multiply
    143,809,806.94x = 215,746,678.86 × 67,090,984.18
  4. Step 4: Simplify right side
    143,809,806.94x = 14,474,657,018,283,802
  5. Step 5: Solve for x
    x = 14,474,657,018,283,802/143,809,806.94
  6. Step 6: Final answer
    x = 100,651,390.38

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.